## Describe the proposal Currently, the invokeMethod API on the Dap Java SDK supports adding headers to the call using the [metadata attribute](https://javadoc.io/static/io.dapr/dapr-sdk/1.11.0/io/dapr/client/DaprClient.html#invokeMethod(java.lang.String,java.lang.String,byte%5B%5D,io.dapr.client.domain.HttpExtension,java.util.Map)). [Invoking an actor method](https://github.com/dapr/java-sdk/blob/master/sdk-actors/src/main/java/io/dapr/actors/client/ActorClient.java#L83) does not provide the same functionality. It would be ideal to have the same support.